https://www.gamespot.com/articles/new-splatoon-2-update-out-now-here-are-the-patch-n/1100-6453217/

Nintendo has released a new patch for Switch's popular online shooter, Splatoon 2. The version 1.3.0 update makes a long list of tweaks and bug fixes to the game, most notably to Salmon Run and certain weapons.

Most of the changes that have been made to Salmon Run address issues that have cropped up. Among other tweaks, Nintendo has fixed bugs that caused certain enemies to take no damage from the Sting Ray when hit in specific conditions. Also, bombs thrown by Steelhead enemies now will not land on top of Scrappers or Flyfish.